What kind of human writing has "it's not X—it's Y" in every single paragraph?
The answer is none. LLMs haven't accurately modeled human writing for years, current models have been smacked on the head with the coding RLHF bat so much, they all write distinctly inhuman text.
The thing is, people are screaming “AI” when they see a single “it's not X—it's Y" pattern in a post, despite this being a fairly common construct.
People are nitpicking every tiny thing in their search for proof of AI. It’s not useful and ends up dominating the conversation. AI panic is degrading the value of forums at least as much as actual AI at this point.